Crankcase integrity breach detection
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United States of America Patent
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Jun 30, 2015
Grant Date -
Mar 20, 2014
app pub date -
Sep 14, 2012
filing date -
Sep 14, 2012
priority date (Note) -
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Abstract
Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple engine components provides cost reduction and sensor compaction benefits.
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